发明授权
- 专利标题: Hydraulic elevator and control method thereof
- 专利标题(中): 液压电梯及其控制方法
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申请号: US63300申请日: 1987-06-18
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公开(公告)号: US4775031A公开(公告)日: 1988-10-04
- 发明人: Ichiro Nakamura , Satoshi Kobayashi , Toshihiko Nara
- 申请人: Ichiro Nakamura , Satoshi Kobayashi , Toshihiko Nara
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX61-143029 19860620
- 主分类号: B66B1/26
- IPC分类号: B66B1/26 ; B66B1/04 ; B66B1/24
摘要:
A hydraulic elevator, wherein actual speed characteristics are detected so that they can be used together with desired speed characteristics in such a manner that the speed control accuracy of the car itself is improved.
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